Exam 3: Decision Structures

What would be the value of discountRate after the following statements are executed? double discountRate = 0.0; Int purchase = 1250; If (purchase > 1000) DiscountRate = .05; If (purchase > 750) DiscountRate = .03; If (purchase > 500) DiscountRate = .01; Else DiscountRate = 0;

Which of the following will format 12.78 to display as 012.8?

In a switch statement,if two different values for the CaseExpression would result in the same code being executed,you must have two copies of the code,one after each CaseExpression.

What is the value of ans after the following code has been executed? int x = 35; Int y = 20,ans = 80; If (x < y); Ans += y;

In an if/else statement,if the boolean expression is false,

What will be the value of ans after the following code has been executed? int x = 90,y = 55,ans = 10; If ( x == y); Ans *= 2;

Which of the following is the correct boolean expression to test for: int x being a value less than or equal to 500 or greater than 650,and int y not equal to 1000?

If str1 and str2 are both Strings,which of the following will correctly test to determine whether str1 is less than str2? (1)(str1 < str2) (2)(str1.equals(str2)< 0) (3)(str1.compareTo(str2)< 0)

Which of the following will format .1278 to display as 12.8%?

Which of the following is the correct boolean expression to test for: int x being a value between,but not including,500 and 650,or int y not equal to 1000?

An important style rule you should adopt for writing if statements is to write the conditionally executed statement on the line after the if statement.

The _________ statement is used to make simple decisions in Java.